import datetime
import time

# 获取当前时间 2023-04-27 11:02:10.500828
now_time = datetime.datetime.now()
print(now_time)

# 时间的加减
# days=天, seconds=秒, minutes=分钟, hours=小时, weeks=周
res = now_time + datetime.timedelta(weeks=3)
print(res)

# 时间替换
# year, month, day, hour,minute, second
res2 = res.replace(year=1999)  # 将年份 修改为 1999
print(res2)
# 将时间戳 修改为 日期格式
res3 = datetime.date.fromtimestamp(time.time())
print(res3)
